Dreadnaught Avel-Lindberg 1000VA Transformer Group Buy?

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  • Mr_Hz
    Mr_Hz Posts: 176
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    We look forward to any feedback you have on other isolation transformer possibilities you might experiment with. Good luck with the move, and all the efforts & headaches that entails!
    2.3TL's - Living Room
    CRS+'s (4.1 TL's) - Office
    SDA1C's - Famdamly Rm
    SDA1C's - Master Bedroom
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  • 250GTLusso
    250GTLusso Posts: 163
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    I know I am relatively new to CP, but I have been a Polk owner (SDA-1C) since 1987, and have been dedicated to the SDA line. I have recently acquired a pair of ADCOM GFA-565 mono-block amps that I would like to use with my 2.3TLs that I acquired about a year ago. I have decided to utilize a Dreadnaught in lieu of strapping the negative terminals together. I have also decided to use the 1KVA Avel Lindberg toroid. Given that these are special order, with a minimum order quantity of 10 units, I thought I would bump this thread back to the top of the list to see if we might be able to get 9 others interested in a group buy?

    Any others interested?
    HT
    Adcom GFP-565 Pre-amp, Adcom GFA-565 Mono Block Amps (Front), Adcom GFA-585 Amp (Side), Adcom GFA-555 Amp (Rear), Adcom ACE-515, Pioneer CLD-3070 Laserdisc, Sony CDP-605esD, Sony BluRay BDP BX59, Samsung 50" Plasma, Polk Audio SDA SRS 1.2TL Front (Walnut), Polk Audio SDA SRS Side (Walnut), Polk Audio SDA SRS Rear (Walnut).
    2 Channel (Living Room)
    Adcom GFP-565 Pre-amp (w/Big Sky Audio Upgrades), Adcom GFA-565 Mono Block Amps (w/Big Sky Audio Upgrades), Adcom ACE-515, Sony CDP-705esD, Magnum Dynalab FT-101A Etude, Polk Audio SDA SRS 2.3TL (Walnut), Polk Audio SDA SRS 2 (Walnut), STAX SR34 Electret Earspeaker System.
    2 Channel (Office)
    Adcom GFP-555 Pre-amp, Adcom GFA-555 Amp, Sony CDP-605esD, Adcom GFT-555 Tuner, Polk Audio SDA 1C (Walnut).
    2 Channel (Garage)
    Hafler DH-110 Pre-amp, Hafler DH-220 Amp, Sony CDP-505esD, Hafler DH-330 Tuner, Polk Audio SDA 2B (Walnut).
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  • F1nut
    F1nut Posts: 52,406
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    If you don't get enough interest, the 800VA isn't that far off the mark.
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  • honestaquarian
    honestaquarian Posts: 3,275
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    What does one of those 1kva's go for anyway?
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  • nspindel
    nspindel Posts: 5,343
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    A few years ago they were at $280 each if you bought 10 units. But I'm sure the price is up a bit since then, you might want to try calling Avel and ask them. Ask for Melanie.

    The group buy works great because Avel ships them individually to each person who purchases, the person coordinating the transaction is just the point person for the payment.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • nspindel
    nspindel Posts: 5,343
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    I still can't believe someone got themselves banned from CP in this group buy!
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • 250GTLusso
    250GTLusso Posts: 163
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    I just spoke with Melanie at Avel Lindberg. Very nice lady. She was so funny. When I said that I was calling about a certain audio grade transformer, she said "...ohhhhh I know the one you are calling about!" She is going to provide me with a quote (tomorrow) for a minimum order of 10. I'll provide the cost and schedule details as soon as I get them.
    HT
    Adcom GFP-565 Pre-amp, Adcom GFA-565 Mono Block Amps (Front), Adcom GFA-585 Amp (Side), Adcom GFA-555 Amp (Rear), Adcom ACE-515, Pioneer CLD-3070 Laserdisc, Sony CDP-605esD, Sony BluRay BDP BX59, Samsung 50" Plasma, Polk Audio SDA SRS 1.2TL Front (Walnut), Polk Audio SDA SRS Side (Walnut), Polk Audio SDA SRS Rear (Walnut).
    2 Channel (Living Room)
    Adcom GFP-565 Pre-amp (w/Big Sky Audio Upgrades), Adcom GFA-565 Mono Block Amps (w/Big Sky Audio Upgrades), Adcom ACE-515, Sony CDP-705esD, Magnum Dynalab FT-101A Etude, Polk Audio SDA SRS 2.3TL (Walnut), Polk Audio SDA SRS 2 (Walnut), STAX SR34 Electret Earspeaker System.
    2 Channel (Office)
    Adcom GFP-555 Pre-amp, Adcom GFA-555 Amp, Sony CDP-605esD, Adcom GFT-555 Tuner, Polk Audio SDA 1C (Walnut).
    2 Channel (Garage)
    Hafler DH-110 Pre-amp, Hafler DH-220 Amp, Sony CDP-505esD, Hafler DH-330 Tuner, Polk Audio SDA 2B (Walnut).
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  • westmassguy
    westmassguy Posts: 6,850
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    nspindel wrote: »
    I still can't believe someone got themselves banned from CP in this group buy!
    I do Neil, I remember the whole thing LOL
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
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  • VSAT88
    VSAT88 Posts: 1,383
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    voltz wrote: »
    OK I'm in then, I doubt I'll find any SDA to need it, but never saw never and maybe someday a polkie will want a Dreadnaught.

    Plus I'm in a good mood, just upgrade the crossover's in my Monitor 4's myself and only burn my self once and It sounds awesome. I went with Claritycap PX's and it works LOL and sounds really sweet without any burn in time!

    Your GREAT !! Love those PX Clarity caps as well !
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  • GDP
    GDP Posts: 27
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    I have a question, I have a pair of 2 b's that are blade / blade can they use the dreadnaught or is it just the pin / blade version?
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  • RandyCroissant
    RandyCroissant Posts: 475
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    Pin blade only, blade blade are a whole different breed :)
    Yamaha RXA1030, Yamaha CD-S2100, Yamaha AS-2200, Bluesound node 2i
    Polk SDA2btl highly modded
    Polk SDA 1C modded
    Polk CS350 LS x2
    Kimber 8TC
    Sony 55" Bravia
    Wish list SVS sub

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  • RandyCroissant
    RandyCroissant Posts: 475
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    I take that back some blade blade will work however you will have to examine the crossover and make sure it follows the pin blade design.
    Yamaha RXA1030, Yamaha CD-S2100, Yamaha AS-2200, Bluesound node 2i
    Polk SDA2btl highly modded
    Polk SDA 1C modded
    Polk CS350 LS x2
    Kimber 8TC
    Sony 55" Bravia
    Wish list SVS sub

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  • VSAT88
    VSAT88 Posts: 1,383
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    pitdogg2 wrote: »
    nspindel wrote: »
    Congratulations scuba, you're out. If you're going to sling more insults at DK's research and reduce it all to a placebo effect, then I feel no reason to help you get your hands on one of these transformers. We have each other's backs around here. Check your paypal, you've been issued a full refund.

    Drumminman, PM coming your way.


    AWESOME Neil

    I do not have a use for one but I will help out if need be on this.

    If you guys cant sell it I will sell something if I have to and buy it myself. I have never read a post like this here at Club Polk..Petty does not cover it by a long shot. These guys have taught me all I know about Polk Audio speakers and I hold them in high regard. Shame on you Scuba.
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  • VSAT88
    VSAT88 Posts: 1,383
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    motorstereo wrote: »
    Moose68Bash wrote: »
    Improvisation! I love improvisation! Well done.

    Now, let me betray my ignorance: What does "rattle can" mean? Does it mean that you painted the seat base with spray paint?

    Thank you for the detailed description of the "build." All I need to do is to find some surplus "line control" stands -- for lack of a better term.

    I want to build stands for a pair of vintage Allison 6 speakers that need to be elevated and backed up against a wall. Yours look very sturdy and about the right height. And, I don't want to spend an arm and a leg on them! :)

    Thanks, again.
    Yes just like drumminman mentioned it's just a can of black spray paint. And yes thanks; that's a good description of the stand as "improvised". It does serve the purpose quite well, didn't cost much, and it was a fun build as well.
    If you're ever down this way I have a pair of those line control stands (minus the boat seat mounts) that are excess to my needs. They're yours for the asking. I'm sure with a little "improvisation" they would work great with your Allisons.
    I do believe it's time for me to give back a little karma to another polkie after all that I've received mostly from this thread.

    Did someone say where we can get said "black spray paint" ?? LOL.
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  • VSAT88
    VSAT88 Posts: 1,383
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    Scott_Free wrote: »
    If anyone is selling a 800VA unit please message me. Thank you.

    Yeah, me too ! LOL
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  • VSAT88
    VSAT88 Posts: 1,383
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    RandyCroissant wrote: »
    I take that back some blade blade will work however you will have to examine the crossover and make sure it follows the pin blade design.

    Hey, you may have the same version of the 2bs that I
    have and they are straight thru. One cable is all that is
    required between mine. If I am right that means you can most
    definitely use a dread..At least I think that's what was explained
    to me.
    Double check and maybe this link will help. Hope I am not too far off topic..

    http://forum.polkaudio.com/discussion/170934/sda-iib-single-active-wire-in-the-interconnect-isolation-transformer-question#latest
    GDP wrote: »
    I have a question, I have a pair of 2 b's that are blade / blade can they use the dreadnaught or is it just the pin / blade version?



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  • F1nut
    F1nut Posts: 52,406
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    VSAT88 wrote: »
    Scott_Free wrote: »
    If anyone is selling a 800VA unit please message me. Thank you.

    Yeah, me too ! LOL

    You can buy the 800VA version from Avel, it's a stocked item.
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  • F1nut
    F1nut Posts: 52,406
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    VSAT88 wrote: »
    RandyCroissant wrote: »
    I take that back some blade blade will work however you will have to examine the crossover and make sure it follows the pin blade design.

    Hey, you may have the same version of the 2bs that I
    have and they are straight thru. One cable is all that is
    required between mine. If I am right that means you can most
    definitely use a dread..At least I think that's what was explained
    to me.
    Double check and maybe this link will help. Hope I am not too far off topic..

    http://forum.polkaudio.com/discussion/170934/sda-iib-single-active-wire-in-the-interconnect-isolation-transformer-question#latest
    GDP wrote: »
    I have a question, I have a pair of 2 b's that are blade / blade can they use the dreadnaught or is it just the pin / blade version?



    It has nothing to do with having a single cable, all SDA's have a single cable. It has to do with the design of the crossover. The general rule is in order to use the AI-1 or Dreadnought the speakers will have the pin/blade cable/socket. There are a very limited number of blade/blade 2B's and a few other models that can use the AI-1 or Dreadnought.
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  • VSAT88
    VSAT88 Posts: 1,383
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    F1, I may well be mistaken but I thought I had been told by you that my blade blade 2b speakers were of the type that can be used. It seems that we spoke in another thread about it. My 2bs have one active cable in the interconnect. Only one cable connects between the speakers, the other blade has no connection whatsoever. It terminates to nothing but a blade on the cup/backplate never attaching to the crossover network. I think I spoke with you but maybe it was someone else here and they said I could use an AI-1 / Dreadnought however I would need connect / terminate it at the speaker grounds. When I have time I will try and look back thru my threads and see if I can find it. Thanks for the advice about the 800VA transformer. I have a thread in WTB about a used one and I can wait if need be. I do not have the extra cash now to order new however I do have a case picked out. An old Eico tube Oscilloscope case gutted out. At least I thought about it anyway.
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  • agfrost
    agfrost Posts: 2,497
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    nspindel wrote: »
    I still can't believe someone got themselves banned from CP in this group buy!

    it was well deserved. Good times.
    Jay
    SDA 2BTL * McCormack DNA 0.5 amp * Oppo BDP-93 * Modded Adcom GDA-600 DAC * Rythmik F8 (x2)
    Micro Seiki DQ-50 * Mitsubishi LT-30 * Hagerman Cornet 2 Phono
    Preamp rotation: Krell KSL (SCompRacer recapped) * Manley Shrimp * PS Audio 5.0
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  • westmassguy
    westmassguy Posts: 6,850
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    Some early production 2Bs and 1Cs used leftover component's from the 3rd generation. Cabinets, IC Cables and Sockets, and I recently had a 1C that had jury-rigged 1B circuit boards. Always best to check exactly what you have.
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
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  • nspindel
    nspindel Posts: 5,343
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    agfrost wrote: »
    nspindel wrote: »
    I still can't believe someone got themselves banned from CP in this group buy!

    it was well deserved. Good times.

    Dude totally went off the deep end.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • F1nut
    F1nut Posts: 52,406
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    VSAT88 wrote: »
    F1, I may well be mistaken but I thought I had been told by you that my blade blade 2b speakers were of the type that can be used. It seems that we spoke in another thread about it. My 2bs have one active cable in the interconnect. Only one cable connects between the speakers, the other blade has no connection whatsoever. It terminates to nothing but a blade on the cup/backplate never attaching to the crossover network. I think I spoke with you but maybe it was someone else here and they said I could use an AI-1 / Dreadnought however I would need connect / terminate it at the speaker grounds. When I have time I will try and look back thru my threads and see if I can find it. Thanks for the advice about the 800VA transformer. I have a thread in WTB about a used one and I can wait if need be. I do not have the extra cash now to order new however I do have a case picked out. An old Eico tube Oscilloscope case gutted out. At least I thought about it anyway.

    Ok, I thought you meant 2 separate cables, but I understand what you meant now. As I said, some blade/blade 2B's can use the AI-1/Dreadnought and it seems yours would be one. There is a list of serial numbers of those that can, but I don't have access to it right now.
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  • Schurkey
    Schurkey Posts: 2,130
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    F1nut wrote: »
    There is a list of serial numbers of those that can, but I don't have access to it right now.
    http://forum.polkaudio.com/discussion/131691/2b-and-early-1c-ai-1-modifications

    9823.jpg
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  • 250GTLusso
    250GTLusso Posts: 163
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    I just checked my SDA-1C's and they are serial numbers 6545 (Right), and 6533 (Left).

    Anybody know what are the "plug adapters and some internal modifications to the crossover"? I have always used a common ground amp (GFA-555) with my SDA-1C's, but I also would like to try my GFA-565 mono-blocks if I can make a tweak to the crossover.
    HT
    Adcom GFP-565 Pre-amp, Adcom GFA-565 Mono Block Amps (Front), Adcom GFA-585 Amp (Side), Adcom GFA-555 Amp (Rear), Adcom ACE-515, Pioneer CLD-3070 Laserdisc, Sony CDP-605esD, Sony BluRay BDP BX59, Samsung 50" Plasma, Polk Audio SDA SRS 1.2TL Front (Walnut), Polk Audio SDA SRS Side (Walnut), Polk Audio SDA SRS Rear (Walnut).
    2 Channel (Living Room)
    Adcom GFP-565 Pre-amp (w/Big Sky Audio Upgrades), Adcom GFA-565 Mono Block Amps (w/Big Sky Audio Upgrades), Adcom ACE-515, Sony CDP-705esD, Magnum Dynalab FT-101A Etude, Polk Audio SDA SRS 2.3TL (Walnut), Polk Audio SDA SRS 2 (Walnut), STAX SR34 Electret Earspeaker System.
    2 Channel (Office)
    Adcom GFP-555 Pre-amp, Adcom GFA-555 Amp, Sony CDP-605esD, Adcom GFT-555 Tuner, Polk Audio SDA 1C (Walnut).
    2 Channel (Garage)
    Hafler DH-110 Pre-amp, Hafler DH-220 Amp, Sony CDP-505esD, Hafler DH-330 Tuner, Polk Audio SDA 2B (Walnut).
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  • 250GTLusso
    250GTLusso Posts: 163
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    Sorry Schurkey, I just noticed the link you provided. Sounds like a very straightforward upgrade.

    One question, why do we need to connect the "other blade" to the negative binding post? I thought that even with the AI-1 compatible pin-blade configuration, only the pin carried any signal, and the blade wasn't hooked up to anything. Am I confused?
    HT
    Adcom GFP-565 Pre-amp, Adcom GFA-565 Mono Block Amps (Front), Adcom GFA-585 Amp (Side), Adcom GFA-555 Amp (Rear), Adcom ACE-515, Pioneer CLD-3070 Laserdisc, Sony CDP-605esD, Sony BluRay BDP BX59, Samsung 50" Plasma, Polk Audio SDA SRS 1.2TL Front (Walnut), Polk Audio SDA SRS Side (Walnut), Polk Audio SDA SRS Rear (Walnut).
    2 Channel (Living Room)
    Adcom GFP-565 Pre-amp (w/Big Sky Audio Upgrades), Adcom GFA-565 Mono Block Amps (w/Big Sky Audio Upgrades), Adcom ACE-515, Sony CDP-705esD, Magnum Dynalab FT-101A Etude, Polk Audio SDA SRS 2.3TL (Walnut), Polk Audio SDA SRS 2 (Walnut), STAX SR34 Electret Earspeaker System.
    2 Channel (Office)
    Adcom GFP-555 Pre-amp, Adcom GFA-555 Amp, Sony CDP-605esD, Adcom GFT-555 Tuner, Polk Audio SDA 1C (Walnut).
    2 Channel (Garage)
    Hafler DH-110 Pre-amp, Hafler DH-220 Amp, Sony CDP-505esD, Hafler DH-330 Tuner, Polk Audio SDA 2B (Walnut).
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  • F1nut
    F1nut Posts: 52,406
    edited December 2016
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    The pin and blade carry signals with the original AI-1 in which case the blade is connected to the negative circuit.
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  • 250GTLusso
    250GTLusso Posts: 163
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    Thanks F1nut. I always learn something every day on CP!
    HT
    Adcom GFP-565 Pre-amp, Adcom GFA-565 Mono Block Amps (Front), Adcom GFA-585 Amp (Side), Adcom GFA-555 Amp (Rear), Adcom ACE-515, Pioneer CLD-3070 Laserdisc, Sony CDP-605esD, Sony BluRay BDP BX59, Samsung 50" Plasma, Polk Audio SDA SRS 1.2TL Front (Walnut), Polk Audio SDA SRS Side (Walnut), Polk Audio SDA SRS Rear (Walnut).
    2 Channel (Living Room)
    Adcom GFP-565 Pre-amp (w/Big Sky Audio Upgrades), Adcom GFA-565 Mono Block Amps (w/Big Sky Audio Upgrades), Adcom ACE-515, Sony CDP-705esD, Magnum Dynalab FT-101A Etude, Polk Audio SDA SRS 2.3TL (Walnut), Polk Audio SDA SRS 2 (Walnut), STAX SR34 Electret Earspeaker System.
    2 Channel (Office)
    Adcom GFP-555 Pre-amp, Adcom GFA-555 Amp, Sony CDP-605esD, Adcom GFT-555 Tuner, Polk Audio SDA 1C (Walnut).
    2 Channel (Garage)
    Hafler DH-110 Pre-amp, Hafler DH-220 Amp, Sony CDP-505esD, Hafler DH-330 Tuner, Polk Audio SDA 2B (Walnut).
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  • VSAT88
    VSAT88 Posts: 1,383
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    250GTLusso wrote: »
    Thanks F1nut. I always learn something every day on CP!

    No doubt on that one. These guys have forgotten more than I will ever know about Polk speakers.. Now, I will read and document more so that one day I no longer be called "grasshopper".
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  • VSAT88
    VSAT88 Posts: 1,383
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    westmassguy wrote: »
    Some early production 2Bs and 1Cs used leftover component's from the 3rd generation. Cabinets, IC Cables and Sockets, and I recently had a 1C that had jury-rigged 1B circuit boards. Always best to check exactly what you have.

    Undoubtedly westmass, thats why I am always hovering around here at CP. I have not found anything that I could not destroy yet by thinking that I know what I am doing ! I am learning better now...So I hope.
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